Chum Chum

Personality
Chum Chum has become much more mature and chill since he became Super Chum. (though Fanboy and the rest of his friends still call him Chum Chum). Chum Chum is now the confident muscular sidekick.

Fanboy
Out of the three main relationships, Fanboy and Chum Chum seem to be the closest out of all of them. They can't stand to be apart at all, but they have learned to get used to it a little.

Raccoon Boy
He is extremely protective of his baby brother.

Oz
Oz helped raise Fanboy and Chum Chum since they were kids. They live seperately but he is still very much their father.